1. Anaesthesia and Critical Care Research Group; Faculty of Health Sciences; University of Tromsø; Tromsø Norway
2. Department of Gastrointestinal Surgery; University Hospital North Norway Tromsø; Tromsø Norway
3. Department of Emergency Medicine and Pre-hospital Services; St. Olav's University Hospital; Trondheim Norway
4. Department of Research and Development; Norwegian Air Ambulance Foundation; Drøbak Norway
5. Norwegian National Advisory Unit on Trauma; Division of Emergencies and Critical Care; Oslo University Hospital Ullevål; Oslo Norway